MPD-43C CXU Gold Line High Base Pillow Block Bearing Medium Duty Double Set Screw Locking 2-11/16" ID They are used to diffuse

They are used to diffuse air and muffle noise from the exhaust ports of air valves

Black Oxided - Concentric Lock - High Contamination

EMSF-35 CXU

MPD-38 CXU

MPD-43C CXU Gold Line High Base Pillow Block Bearing Medium Duty Double Set Screw Locking 2-11/16" ID They are used to diffuseMPD 43C CXU Mounted Cast Iron Two Bolt Pillow Block Ball Bearing 52100 Bearing Steel, Black Oxided Double Setscrew Lock Air Handling Housing Fit, Noise Tested Features Powder coated epoxy cast iron housing with extended inner ring bearings Zone hardened inner ring with 120 spacing setscrew locking on both sides of ball path with diamond faceted setscrews Air Handling noise check for quiet operation Looser than standard housing fit for ease of